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WIFI Diagnostics from Windows 7 or Vista Command Prompt (by Tony Fortunato)

Tony_fortunatoThe_tech_firmAuthor Profile - Tony Fortunato is a Senior Network Specialist with experience in design, implementation, and troubleshooting of LAN/WAN/Wireless networks, desktops and servers since 1989. His background in financial networks includes design and implementation of trading floor networks. Tony has taught at local high schools, Colleges/Universities, Networld/Interop and many onsite private classroom settings to thousands of analysts. Tony is an authorized and certified Fluke Networks and Wireshark Instructor. His Pine Mountain Group CNA Level I and II certification demonstrates his vendor neutral approach to network design, support and implementations. Tony has architected, installed and supported various types of Residential Wireless High Speed as well as hundreds of WIFI hotspots. Tony uses a variety of technologies from Powerline, Wireless and wired technologies to find the most cost-efficient and reliable solution for his customers. Tony combines custom programs, open source and commercial software to ensure a simple support infrastructure.

While working at a customer site, we were trying to troubleshoot a wifi problem with their laptops running Windows 7. The laptops were 'locked down' so we couldn't install any applications. That's when I remembered playing with netsh commands a few months back.

We started with the basic  netsh wlan show networks mode=ssid and got some good basic info.  Here's an example of the output;


From there we got even more detail with netsh wlan show networks mode=bssid


This info is much more informative than the Windows Wireless connection manager output 

2010-05-29 20 32 01 



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